ios 实名认证 手机号 身份证 银行卡 以及银行卡的格式 正则表达式

/**
 银行卡格式

 @param textField 格式
 @param range 银行卡

 */
-(BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string {
    NSString *text = [textField text];
    
    NSCharacterSet *characterSet = [NSCharacterSet characterSetWithCharactersInString:@"0123456789\b"];
    string = [string stringByReplacingOccurrencesOfString:@" " withString:@""];
    if ([string rangeOfCharacterFromSet:[characterSet invertedSet]].location != NSNotFound) {
        return NO;
    }
    text = [text stringByReplacingCharactersInRange:range withString:string];
    text = [text stringByReplacingOccurrencesOfString:@" " withString:@""];
    
    NSString *newString = @"";
    while (text.length > 0) {
        NSString *subString = [text substringToIndex:MIN(text.length, 4)];
        newString = [newString stringByAppendingString:subString];
        if (subString.length == 4) {
            newString = [newString stringByAppendingString:@" "];
        }
        text = [text substringFromIndex:MIN(text.length, 4)];
    }
    
    newString = [newString stringByTrimmingCharactersInSet:[characterSet invertedSet]];
    
    if (newString.length > 23) {
        return NO;
    }
    
    [textField setText:newString];
    
    return NO;
}

//身份证号
/**
 正则表达式

 @param IDCardNumber 身份证
 @return 验证
 */
- (BOOL)IsIdentityCard:(NSString *)IDCardNumber
{
    if (IDCardNumber.length <= 0) {
        return NO;
    }
    NSString *regex2 = @"^(\\d{14}|\\d{17})(\\d|[xX])$";
    NSPredicate *identityCardPredicate = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",regex2];
    return [identityCardPredicate evaluateWithObject:IDCardNumber];
}
/**
 正则表达式

 @param mobile 手机号
 @return 验证
 */
- (BOOL)validateMobile:(NSString *)mobile
{
    // 130-139  150-153,155-159  180-189  145,147  170,171,173,176,177,178
    NSString *phoneRegex = @"^((13[0-9])|(15[^4,\\D])|(18[0-9])|(14[57])|(17[013678]))\\d{8}$";
    NSPredicate *phoneTest = [NSPredicate predicateWithFormat:@"SELF MATCHES %@",phoneRegex];
    return [phoneTest evaluateWithObject:mobile];
}

/**
 正则表达式

 @param cardNumber 银行卡
 @return 验证
 */
-(BOOL)IsBankCard:(NSString *)cardNumber
{
    if(cardNumber.length==0)
    {
        return NO;
    }
    NSString *digitsOnly = @"";
    char c;
    for (int i = 0; i < cardNumber.length; i++)
    {
        c = [cardNumber characterAtIndex:i];
        if (isdigit(c))
        {
            digitsOnly =[digitsOnly stringByAppendingFormat:@"%c",c];
        }
    }
    int sum = 0;
    int digit = 0;
    int addend = 0;
    BOOL timesTwo = false;
    for (NSInteger i = digitsOnly.length - 1; i >= 0; i--)
    {
        digit = [digitsOnly characterAtIndex:i] - '0';
        if (timesTwo)
        {
            addend = digit * 2;
            if (addend > 9) {
                addend -= 9;
            }
        }
        else {
            addend = digit;
        }
        sum += addend;
        timesTwo = !timesTwo;
    }
    int modulus = sum % 10;
    return modulus == 0;
}